Beater



July 2, 1929.

M. SYDNEY v BEATER Filed April 6, 1925 www i N 1,718,989 PATENT OFFICE.

IINATOJO SYDNEY, OF BOSTON, MASSACHUSETTS.

BEATEB.

Application filed April 6,

This invention aims to provide an improved beater, particularly, thoughnot exclusively, useful for beating eggs, cream, etc.

ln the drawings which illustrate a prell lerred embodiment of myinvention li'ig. 1 is an elevation view of the beater; Fig. 2 is asect-ion on the line 2-2 of Fig. l, being partly in elevation; n

lli 3 is a plan section on the line 3--3 le of Fig. 1 showing therpropeller-like members; and

Fig. #l is a section on the line 4-4of Fig. E showing the assembly ofthe parts of the heater.

Referrin to the drawings, I have shown a beater which includes a tramepart 1 formed trom a single iece of metal. The frame presents a hand e2, a plurality of fingers 8 anially aligned with the handle and apluralil@ ity of U-shaped slots 4 facing toward a finger 5 iorrnedintegral with the frame for supsorting a driving gear 6'. The beateralso includes two propeller-like members or beaters 7 and 8 located oneabove lthe other ata ttl substantial distance below the frame.

ebeaters are formed in units, each oi which includes a propeller-likepart, a shaft and a pinion gear, and both units arel assembled togetherprior to assembly with the lill traine. The beater 8 is secured to acollar 9 which in 'turn is secured to one end of a shaft le by a pin 16,as best illustrated in Fig. Q ,llt the other end of the shaft I haveprovided a pinion ear 11 which may be secured to the at shaft 1n anysuitable manner. The propeller-lilre member 7 is secured directly to oneend of the hollow shaft 13 surrounding the shaft 10 and at the other endof the shaft 18 l hare secured thereto a second pinion le ,gear 14,similar to the pinion 11. The second described unit may be-entirelyassembled and placed over the shaft 10 before the pinion gear 11issecured to the shaft 10, then when this pinion is secured in itsproper position, la both units are assembled, although one may slideaxially relativel to theother for purposes more fully hereinafterdescribed.

Illhe whole beater is assembled as follows ll'irst the shafts 10 and 13are placed into the lll-shaped slots 4 by sliding them between the ger 5and the fingers 3, Fig. 4, then into the slots l so that the pinion 11is located between the upper finger 3 and the handle 2. Wlille pinion 14is placed between the two lower lingers 3 thereby preventing axialmovement of the beater units relative to the lli 1925. Serial No.20,944.

frame 1 or relative to each other. The driving gear 6 is then placedover the hub 15 formed integral with the linger 5 and a nut `16 isthreaded onto the hub to hold the gear in position. The gear 6 mesheswith the pin- Vions 11 and 14 and prevents movement of the shafts 10 and13 out of the U-shaped slots until the nut 16 is removed. Thus all theunits of the beater are held in assembled relation by a single n ut. Theusual handle 17 is r provided on the gear 6 for rotation thereof. Therounded projection 19 is formed on the handle 2 so as to provide asmooth bearing point for the end of the shaft 10.

The propeller-like members 7 and 8 are pressed from sheet metal and haveblades 18 twisted so as to direct: the medium, which is being mixed orwhipped, upwardly in the case of the member 8 and downwardly as in thecase of the member 7, thereby insuring a complete mixing of the medium.The blades. 18 are connected at their outer ends by a continuous rino'or band 18, Fig. 3, and from this band the blades extend toward thecenter or hub portion of the ropeller-like member tangential theretoandj at an angle pointing away from the direction lof rotation relativeto a radial line from the center of the shaft. This is done so that themedium may be carried from the outer ends of the blades toward thecenter of the propellerlike members. These members are rotated inopposite directions and, therefore, the blades of each member slantinwardly in opposite directions as clearly indicated in Fig. 3.

In operation, the gear 6 is rotated, thereby turning the pinion gears ata relatively hig rate of speed and in opposite directions, therebyturning the shafts so that the propellerlike members 7 and Bare whirledat a relatively high rate of speed in opposite directions. When thisaction takes place with the rounded end of the shaft 10 resting on thebottom of a pan or dish, the substance therein will be drawn from thesides of the dish by both members 7 and 8. The blades 18 of the member 8draw the substance from the edges of the dish toward the center thereofand at the same time direct it upwardly into the path of the member 7.At the same time the blades 18 ofthe member 7 are drawing the substanceto be whipped from the edges of the dish t0- ward the center anddownwardly into the path of the member 8, thereby insuring a completeintermixin g process, the whole substance being churned over and over.

The web 20 is formed in the handle 2 to prevent grasping the handle withthe lingers in the opening 21, as it has been found that such a simpleoperation that the beater may be taken apart so that the units may bemoved axially relative'to each other to provide a convenient spacebetween the propeller-like members 7 and 8 whereb theblades may vereasily and quickly c eaned.

lg'hile I have shown and described a referred embodiment of myinvention, it wi l be understood that changes involving omission,alteration, substitution of parts and even changes in the mode ofoperation may be effected without departing from the scope of myinvention which is best defined in the appended claims.

Claims:

1. A beater including aframe, tyvo ropeller-like members" locatedrelatively c ose together one above the other and means for rotatingsaid propeller-like members in opposite directions, each 'of saidmembers having a series of blades twisted so as to direct the mediumwhich is being mixed into the path of the other member and said bladesvangled relative to radial, lines from the center of the member in adirection away from the direction of rotation so as to direct {,lemedium toward the centers of said memrs. 2.' A beater including aone-piece frame, Vtwo propeller-like members located one above l theother and means for rotating said propel- 4 ler-like members in oppositedirections, each of eac 3. A beater comprising, in combinations.

vframe partpresenting Aa lurality of fingers each having a U-shaped s otgenerally axialof said members having a plurality of twisted bladesangled relative to radial lines from the center of the member, saidblades being thereby adapted to direct the medium which is being mixedfrom the outer periphery of said members toward the centers thereof andalso u wardl-y anddownwardly member.

into the pathY metal, a plurality of beater units secured together andsupported by said frame, and Y" gear for operation of said beaters, saidgear secured to said frame so as to hold said beater units inassembledrelation with said frame.

5. A beater comprising, in combination, a frame part, beater means, agear for operatmember for holding said frame, ater means and gear inassembled relation with each other.

6. A beater'including a frame, a plurality of propeller-like memberslocated relatively close together,one above the other, at least one oflsaidpropellers being curved in crosection and means for rotating saidpropellering said beater means and a sin le fastening like members inopposite directions, each of l said members having a series of relativelnarrow closely arran d blades twisted wit relation to the direction inwhich said members are rotated sovthat one of said members will directthe medium which is beinemixed into the path of another of said mem rsand each of said propeller-like members when rotated setting up aresistance to passage ofthe medium through the Vpropeller-like memberbecause of the close arran blades, a central hub portion provided b eachof said propeller-like members an said' blades being connectedtangentially with the hub portions thereby to draw the materialbeingmixed'toward the centers of the propellerlike and means conn thefree ends'p'f said blades to hold them in proper spacedand twistedrelation;

ltestimony whereof, I have signed my name to this specification.

' MINATOJO SYDNEY.

ent of the

